{"action":"Upgrade github.com/fleetdm/fleet/v4 to 4.81.0 or later.","affected":[{"fixed":"4.81.0","introduced":"0"}],"component":"github.com/fleetdm/fleet/v4","cve_ids":["CVE-2026-23998"],"ecosystem":"Go","epss":0.00214,"exploited":false,"fixed_versions":["4.81.0"],"ghsa_id":"GHSA-2rc4-7jc6-qffh","id":"tcs_01M5KESKJQ17Q7CZC2TMSA2JEW","modified_at":"2026-06-08T23:45:19.172964221Z","published_at":"2026-05-14T13:13:11Z","references":["https://osv.dev/vulnerability/GHSA-2rc4-7jc6-qffh","https://github.com/fleetdm/fleet/security/advisories/GHSA-2rc4-7jc6-qffh","https://nvd.nist.gov/vuln/detail/CVE-2026-23998","https://github.com/fleetdm/fleet/commit/3ff8119ab8f794806a4cc82e21f760c123d92966","https://github.com/fleetdm/fleet","https://github.com/fleetdm/fleet/releases/tag/fleet-v4.81.0"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-2rc4-7jc6-qffh","url":"https://osv.dev/vulnerability/GHSA-2rc4-7jc6-qffh"}],"summary":"Fleet has a Windows MDM management endpoint authentication bypass"}